eastern time this morning for krystle campbell. one of the three people killed in last week's terror attack. and at 2:50 p.m. this afternoon, that's the exact moment the first bomb went off last week, bells will toll across boston for 30 seconds as the city pauses to remember the victims. and coming up at 7:30 eastern, we will speak to boston police commissioner ed davis about the latest in the investigation. he has been right at the center of the whole thing. we will find out where it stands this morning. and then just ahead, in the days after the deadly marathon bombing, suspect dzhokhar tsarnaev returned to his college campus, acting as if nothing happened. we will hear from the students who spoke with him. they are deeply disturbed this morning about these conversations. >>> then homes destroyed by rising floodwaters in the midwest. we will go live to one of the communities fighting to stay above water. you're watching a special edition of "starting point" live from boston. but i wondered what a i tcustomer thought? is great, h